Compilare: user.cpp: In function ‘int find(int, int, int)’: user.cpp:15:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(a[i]<mij)i++; ^ user.cpp:16:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(mij<a[j])j--; ^ user.cpp:23:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(l<=j && p<=j && l<=p) return find(l,j,p); ^ user.cpp:23:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(l<=j && p<=j && l<=p) return find(l,j,p); ^ user.cpp:24:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<=r && p<=r && i<=p) return find(i,r,p); ^ user.cpp:24:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<=r && p<=r && i<=p) return find(i,r,p); ^ user.cpp: At global scope: user.cpp:28:6: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] main(){ ^ user.cpp: In function ‘int find(int, int, int)’: user.cpp:25:1: warning: control reaches end of non-void function [-Wreturn-type] } ^